Method of making an inflatable structure
United States Patent 3110552

Inventors:
Voelker, Walter D.
Publication Date:
11/12/1963
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Assignee:
Voelker, Walter D.
Primary Class:
264/45.200
Other Classes:
52/2.150, 521/50, 521/174, 264/516, 264/572, 264/46.500, 264/46.900
International Classes:
B29C44/12; B29C44/02
US Patent References:
2898626Method and apparatus for forming foamed material
2958516Apparatus for making synthetic resins
2983636Laminated non-woven belt
3013922Manufacture of plastic articles having spaced shells with reinforced foam filling
Foreign References:
AU211422A
GB720956A
CA537295A